Featured Research

from universities, journals, and other organizations

Measuring Greenhouse Gases In Old Bottles Of Wine

Date:
December 2, 2008
Source:
University of Groningen
Summary:
In order to investigate the greenhouse gas effect in Europe, one has to measure the concentrations of CO2 from fossil fuels at different places all over the continent. This could be done with 14C tests of air samples, but the same types of measurements can also be carried out on plants that have absorbed CO2. To that end one would need plant material that is known to come from a specific region and also know which year it grew in.

Old wine bottles. The alcohol in wines is the result of the fermentation of plant sugars in the wine grape. The carbon atoms in the alcohol molecule can be directly traced back to the carbon atom in carbon dioxide. By analysing the amount of carbon-14 (14C) in the alcohol, one can find out what the percentage of CO2 from fossil fuels was in the atmosphere when the grapes were ripening.
Credit: iStockphoto/Manuel Velasco

In order to investigate the greenhouse gas effect in Europe, one has to measure the concentrations of CO2 from fossil fuels at different places all over the continent. This could be done with 14C tests of air samples, but the same types of measurements can also be carried out on plants that have absorbed CO2. To that end one would need plant material that is known to come from a specific region and also know which year it grew in.

Wine is the ideal research material, thought researchers from the Centre for Isotope Research (CIO) of the University of Groningen.

CO2 in the atmosphere can come from various sources. Humans and animals breathe it out, it comes out of the earth when organic material decays, and it is also created by burning fossil fuels like coal, petrol and natural gas. CO2 formed in this way contributes to the strengthening of the greenhouse effect, and thus to a warmer climate. However, part of it is absorbed by plants that convert it with the help of sunlight into sugars.

Wine grape

The alcohol in wines is the result of the fermentation of plant sugars in the wine grape. The carbon atoms in the alcohol molecule can be directly traced back to the carbon atom in CO2. By analysing the amount of carbon-14 (14C) in the alcohol, one can find out what the percentage of CO2 from fossil fuels was in the atmosphere when the grapes were ripening.

Radioactive decay

The scientific basis for this is the same as for 14C dating for age. Carbon-14 is a radioactive form of carbon that occurs everywhere in nature in minute traces. In dead material, this 14C slowly disappears due to radioactive decay. Fossil fuels are millions of years old so all of the 14C that they once contained has disappeared in the meantime. CO2 deriving from fossil fuels can thus be identified easily by the absence of 14C.

Regional map

Wine is the ideal agricultural product for conducting this type of research. Better quality bottles of wine state on the label the year that the grapes were harvested and the region they come from. With the help of colleagues in Europe, and also just via off-licences, the researchers obtained 160 bottles of wine from different years and from different European countries and regions. ‘On this basis we could create a wonderful regional map of the European use of fossil fuels for a number of years’, says researcher Sanne Palstra of CIO. Most helpful was the contact with a wine-grower from the Pfalz in Germany, who contributed a series that resulted in measurements stretching back to 1975.

Supplement

The research revealed that wine alcohol can definitely be used to derive trends in the amount of fossil fuel CO2 in the atmosphere in previous years. Palstra: ‘Analysing the 14C in wine alcohol is an excellent supplement to the current air measurements. Before we can convert the measured amounts of CO2 back into the amount of fossil fuels burned, however, we need information about air currents. That has been acquired with the help of a German colleague. Atmospheric transport can vary significantly from year to year, so detailed regional information is very important.’

Popular

The research will be continued in cooperation with Wageningen University, because in addition to wine, other agricultural products or plants can also be used. However, it’s doubtful whether the researchers will be as popular with them as they are now at their institute. They only needed 100 ml from each bottle for their wine research and the opened bottles were shared with their colleagues, who toasted the research with them at home.


Story Source:

The above story is based on materials provided by University of Groningen. Note: Materials may be edited for content and length.


Journal Reference:

  1. Palstra et al. Wine ethanol 14C as a tracer for fossil fuel CO2 emissions in Europe: Measurements and model comparison. Journal of Geophysical Research, 2008; 113 (d21): D21305 DOI: 10.1029/2008JD010282

Cite This Page:

University of Groningen. "Measuring Greenhouse Gases In Old Bottles Of Wine." ScienceDaily. ScienceDaily, 2 December 2008. <www.sciencedaily.com/releases/2008/12/081201101702.htm>.
University of Groningen. (2008, December 2). Measuring Greenhouse Gases In Old Bottles Of Wine. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2008/12/081201101702.htm
University of Groningen. "Measuring Greenhouse Gases In Old Bottles Of Wine." ScienceDaily. www.sciencedaily.com/releases/2008/12/081201101702.htm (accessed September 2, 2014).

Share This




More Plants & Animals News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Washington Wildlife Center Goes Nuts Over Baby Squirrels

Washington Wildlife Center Goes Nuts Over Baby Squirrels

Reuters - US Online Video (Aug. 30, 2014) An animal rescue in Washington state receives an influx of orphaned squirrels, keeping workers busy as they nurse them back to health. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Newsy (Aug. 29, 2014) In a new study, a promising experimental treatment for Ebola managed to cure a group of infected macaque monkeys. Video provided by Newsy
Powered by NewsLook.com
Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins